Aia ʻo HC ma ke kūlanakauhale ʻo Changsha, ka moku ʻo Hunan, ʻO nā huahana nui ka CRANKSHAFT, CYLINDER HEAD, CYLINDER BLOCK, PISTON, PISTONG RING, CYLINDER LINER, BEARING. Hoʻohana ʻia nā huahana i loko o ka moana, locomotive, generator, nā mīkini hana, nā kaʻa kaumaha, nā kaʻa a me nā kaʻa kalepa. ʻO ke kumu hoʻohālike engine e uhi iā CUMMINS, CATTERPILAR, DETROIT, VOLVO, MERCEDES-BENZ, MAN, DAF a me nā mea ʻē aʻe, ʻo ka hoʻomohala ʻana ma ke ʻano he kiʻi kiʻi a i ʻole nā ​​​​palapala ko mākou pono. I kēia manawa ua hoʻopuka maikaʻi ʻia nā huahana ma mua o 30 mau ʻāina.